Air lock or h gasket?

Need technical Q/A then you're in the right place

Moderator: martauto

bmw9818
E30 Zone Addict
E30 Zone Addict
Posts: 2561
Joined: Tue Aug 11, 2009 11:00 pm
Location: Croydon

Post Tue Jun 30, 2020 9:58 pm

evening chaps

took my 325 out for blast sunday and looks like the water pump bearings got play - the fan chafed through the top hose and overheated....

i noticed it at just below the red box and cut it and pushed it to the side,

patched up the hose & tried rebleeding but just woudnt have it, called out rac for direct recca and they sent a tech out who said poss head gasket - he tried a sniff test but unable as water pushing out the rad
(e36 radiator) so expansion tank on it..

basically i got it home and had a look thought might possibly be the stat thats stuck closed but opening up ok, its overheating but no hot air at all coming out through heaters so could it be just a massive air lock or blockage somewhere?
User avatar
BenHar
E30 Zone Addict
E30 Zone Addict
Posts: 3081
Joined: Sun Jul 11, 2010 11:00 pm
Location: Reigate, Surrey

Post Tue Jun 30, 2020 10:15 pm

Bleed it properly.

Search the forum for the correct way to do it.

Ben